Rolling-mill.



No. 7l4,260. Patented Nov. 25, I902.

H. L. THOMPSON. ROLLINGMILL.

(Application filed Dec. 16, 1901.)

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No. 7l4,260. Patenteq Nov. 25. I9ID2.

H. L. THOMPSON.

ROLLING MILL. I (Application filed Dec. 16, 1901.

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No. 714,260. Patented Nov. 25. I902. H. L. THOMPSON.

ROLLING MILL.

(Appliqation flledpe. 16, 1901. (no Model.) 5 Sheets-Sheet 5.

If a1 HUGH L. THOMPSON, OF WYATERBURY, CONNECTICUT.

ROLLING-I-MILL.

SPECIFICATION forming part of Letters Patent No. 714,260, dated November 25, 1902.

Application filed December 16,1901. Serial No. 86,028. (No model.)

To all whom it may concern:

Be it known that I, HUGH L. THOMPSON, a citizen of the United States, residing at Waterbury, county of New Haven, State of Connecticut, have invented certain new and useful Improvements in Rolling-Mills, of which the following is a full, clear, and exact description.

My invention relates to rolling-mills.

Among the main objects of my invention is to improve rolling-mill machinery, to provide automatic cooling and oiling apparatus, and in general to arrange the parts of the system in such manner as to secure the most efficient results.

Many advantages will be obvious to the engineer skilled in this art from an examination ofthe drawings and a reading of the following description.

In thedrawings, Figure 1 is a conventionalized or diagrammatic View of a complete system without regard to minor details of construction. Fig. 2 is a relatively enlarged view of one end of a rolling-mill proper. Fig. 3 is a section through the mill shown in Fig. 4. Fig. 4 is a vertical central section of the mill shown in Figs. 2 and 3. Figs. 5, 6, 7, S, and 9 are fragmentary views of details of construction.

Referring to Fig. l, 1 is an engine, by preference coupled direct to main shaft 2, which may extend laterally in opposite directions away from said engine. The shaft may be made up of several sections. For example, 2 2 3 3 are pinions on this shaft. 4 4 are large spur-wheels meshing with the pinions 3 3, each of said spur-wheels driving one or more mills. In Fig. 1 a mill is illustrated on each side of each spur-wheel 5 is an oil-supply tank, preferably located above the entire system, so as to afford a gravity-feed. 6 is a delivery-pipe, from which various branch pipes7 7 may be tapped in to conduct oil to the various bearings in the various mills. Underneath the mills are located pans 8 8, which catch water and oil dripping therefrom and conduct to a waste-pipe 9, by which it is carried off to any suitable tank, after which the oil may be reclaimed to be used over again. 10 10 are drip-pans located under oil-bearings and adapted to catch dripping oil which is not mixed with water or other foreign matter. These pans 10 10 catchthe oil, and from these pans it is conducted through a suitable pipe or pipes 11 11 to a tank 12. The oil in tank 12 may be drawn off and filtered or otherwise put in condition for use. Manifestly the catch-basins may be modified in various Ways in that they may be separate pans or may form part of the bearings, as illustrated in Fig. 1 by the refand 20 the metal is passed and reduced to.

the desired shape or thickness. Manifestly the particular arrangement of the gears may be modified; but by the above construction the power of the engine is most economically transmitted to each of the rolling-mills.

The means for supplying water to the mills by which the same are cooled are not shown in Fig. 1, but are shown in the relatively enlarged detail views, to which attention is now directed.

In Figs. 2,3, and 4 a detailed construction of one mill is shown, in which 21 is a supporting frame or housing having slots therein.

23 is a bearing-block for the lower roll 15.

The bearing-block is placed in the slot in the housing 21. 231 is a water-box also placed in said slot and resting upon the bearing for the roll 15. The Water-box 231 may be opened a in its upper side for the purpose hereinafter described. 232 is a lifter also placed within the slot in the housing 21. This lifter is placed underneath the roll20 and preferably projects into the water within the water-box 231, whereby it may be cooled. 233 is what is termed a rider, the same being placed within the slot within the housing 21 and bearing upon the upper roll 20. 22 are guides for rider 233. Various modifications of these parts may be had without departing from the spirit and scope of my invention; but each of these parts is preferably hollowed, so as to form a water jacket or space, through which a circulation of water is maintained by a suitable pipe system, in which 24 is a main water-supply pipe. 25 is aservice-pipe connected by a flexible connection 250 to the pipe 24. Service-pipe 25 passes up through the frame of the machine and is carried in such a way as to bemovable with the parts 232 and 233 for the upper roll 20. 26 26 are connections between the service-pipe 25 and the said parts, by which water is supplied thereto. 27 is a drain-pipe connected to the main drain 28 by the flexible connection 270. 29 29 are suitable drain connections leading to the drainpipe 27.

From the foregoing it will be seen that it is my intention to supply water through pipe 24 to the several parts of the mill adjacent to the roll-bearings and to reduce the heat therein and to maintain the circulation by having a drain-pipe so connected to said several parts as to draw the water off as it is heated, thus keeping the temperature of the water down to a low point in the various parts and producing a correspondingly low temperature therein. Incidentally the water through the service-pipe 25 may be led to a suitable pipe 30, Fig. 4, which may have a suitable sprinkling-head 31, with various nozzles 32 standing above the rolls to supply water thereto in proper quantities, the same being governable in any suitable manner. Manifestly each mill is provided with a set of frames 21 or housings, and the pipe 30 may serve as a separator or brace therefor, together with any other suitable braces which it may be desired to provide. The water dripping on the rolls and dripping therefrom may be caught in a suitable channel 33 and delivered to any suitable point, as by the pipes 9 9 of Fig. 1.

34 represents the usual adjusting-screws provided to give the proper adjustment to the rider 233, controlling the position of the upperroll 20.

35 is a suitable spring mounted under a yoke 36, having suitable connectionsfor example,through the pipes 25 27-with the lifter for the upper roll 20, so that when the adjusting-screws 34 34 are elevated said upper roll is caused to rise. Obviously this construction may be modified; but I find this to be an economical and effective arrangement. One means for supporting the spring 35 at the end opposite its bearing against the yoke 36 comprises an adjustable nut 37, mounted upon pipe 38 with the frame in such manner that the action of the spring against the yoke 36 is in an upward direction. The pipe 38 affords an oil-supply for the bearing for the lower roll 15. This pipe 38 is preferably upset and enlarged .at its upper end, as'shown at 381 in Fig. 4, so as to form a dowel projecting slightly into a cavity in the under side of the bearing 23, thereby acting as a key to prevent the revolution of said bearing or the lateral displacement of the same. The

per roll and its associated parts are carried by said pipe 38 through spring 35. Oil is supplied to the pipe 38 through the oil-supply conduit 39, which pipe 39 may receive its supply from the oil-pipe 6, referred to in Fig. 1. The conduit from pipe 38, by which oil is passed to the bearing 23, is best shown in sectional view in Fig. 4, in which it will be seen the oil may flow by gravity directly to the bearing-block 23 and between said bearing-block to the neck of said roll. The revolution of the roll 15 of course carries the oil over the surface of the adjacent parts. Oil is fed to the bearings for the upper roll 20 through a suitable passage through the screw 34. The supply of oil for the upper-roll bearings is received through the pipe 7. (Illustrated conventionally in Fig. 1.)

344 344 are grease-cups at the top of the screws 34 34, from which the screws are 111- bricated.

In Fig. 3 is shown in section a pan 49, which may stand between the frames or housings 21 21 and underneath the lower roll 15, so that fluid within the pan may be raised to such a level as to partially immerse said roll for cooling or lubricating purposes. This pan may be of sufficient strength to properly space and hold the lower portions of the housings 21 21, thus dispensing with the necessity of rods in said lower portion corresponding to the rods 30 in the upper portion.

Details of construction are illustrated in Figs. 5 and 9, to which attention is now directed.

Fig. 5 illustrates an approved form of construction for the hollow brace rod or pipe 30, in which the ends of the pipe 30 are shown to be screw-threaded and bear adj usting-nuts 40, which may take up on opposite sides of each frame 21 or an extension thereof.

In Fig. 6 it is best seen that the water-box 231 is hollowed out on its upper side and may contain water. Into this Water the lifter 232 for the upper roll 20 projects. By meansof this water-box 231 the necks of both'rolls 15 20 are cooled. In this view the pipes 25 27 are shown'to be provided with shoulders 41 41, upon which the lifter 232 rests, so that roll 20 will be correspondingly moved.

Fig. 7 illustrates a plan view of the rider lubricating the necks of the rolls exudes from the bearings andfinds its way to the pan 10, from which it is drawn off by the pipe 11 and conveyed to any suitable waste-receptacle, as

, before described.

a The advantages to be derived from the cooling and lubricating system as herein set forth will be apparent to those skilled in the art to which this application refers. It is of an economical and simple construction and is designed to fulfil its functions in a satisfactory and. reliable manner. The method of counterbalancing the rolls of the mill and of attaching. the oil-supply pipes and water-cooling pipes will be found to provide a structure in which the necessary adjustments may be made with ease and which is but little affected by the extremely hard usage to which it must be subjected in practice.

Many other economies are effected growing out of this construction which are obvious and it is not necessary to recite herein.

What I claim is 1. In an apparatus of the character described, a plurality of rolls mounted in housings, conduits for a system for cooling-water for the bearings of said rolls, the housings being held apart secured and braced at the top by pipes which also act as part of the conduit for the cooling-water.

2. In an apparatus of the character described, a plurality of rolls, hollow waterjacketecl bearings therefor, flexible connections for the supply and drain pipes therefor, the main supply and the main drain pipe being connected with the bearings for one of the rolls, and means for moving said pipes to correspondingly move said roll.

. for the lower roll.

4. In a deviceof the character described a pair of rolls, bearings therefor, the upper of said rolls being movable up and down, sup

ply-pipes for conveying cooling-water to said bearings, means for adjusting the position of said upper roll and a yoke and spring for counterbalancingthe weight of the upper roll, said yoke being attached to the pipes for the upper-roll bearing.

5. In a device of the character described, a pair of rolls, bearings therefor, an oil-supply for said bearings, the upper of said rolls being movable up and down, means for adjusting the position of said roll and a yoke and spiral spring for counterbalancing the weight p of said upper roll, said spring being mounted on a pipe through which oil may be conducted from said oil-supply.

6. In a device of the character described a pair of rolls, bearings therefor, water-jackets forsaid bearings, pipes leading to said water-jackets, the upper of said rolls together with its water-jacket and water-pipes being.

movable up and down, means for adjusting the position of said upper roll and a yoke and spring for counterbalancing the Weight of the upper roll, said yoke being carried by the water-pipe leading to the bearings for said upper roll.

7. In a device of the character described, a

system of oil-supply conduits and means for collecting the oil which may drip from said bearings.

8. In an apparatus of the character described, a pair of housings, rolls between the same, a water-box resting upon the neck of the lower roll and extending upwardly, a lifter bearing against the under side of the neck of the upper roll said lifter extending downwardly into said water-box, substantially as and for the'purpose described.

9. In a device of the character described, a pair of housings, a pair of rolls between the same, the necks of said rolls projecting into said housings, a suitable bearing underneath the lower roll, means to lift the upper roll and a rider bearing upon the upper side of the neck of the upper roll, said rider being waterjacketed and provided with an oil-passage.

10. In a device of the character described, a pair of housings,water*passages therethrough, hollow separators for the upper part of said housings, and a water-pan for the lower part of said housings,said pan performing the f unction of a separator for the lower part of said housings and as a receptacle for water to cool the operative face of the lower roll.

11. In a device of the character described a pair of housings, rolls carried between the same, the necks of said rolls projecting into said housings andhaving bearings therein, a lining for the bearing for the lower roll, oilsupply pipes for said bearings, a hollow spindle projecting through the housings, the end of said hollow spindle being enlarged and projecting into the lining for said roll-bearing to retain the latter in position, the said hollow spindle acting also as a part of the conduit for said oil-supply.

12. In a device of the character described a pair of rolls, bearings therefor, the upper of said rolls being movable up and down, means for adjusting the position of said upper roll, oil-supplying conduits for said bearings and a lower lining for the lower-rollneck bearingand a yoke and spring for counterbalancing the weight of the upper roll, the said spring being mounted on a pipe for the oil-supply conduit, said oil-supply pipe also acting to hold the lining for the lower-roll neck bearing in place.

13. A rolling-mill having a pair of rolls, bearings for each of said rolls one of said rolls being adjustable in position, a Waterjacket for the lower bearing of the upper roll, a supply-pipe leading to said Waterjacket, means for effecting an adjustment of said upper rolls and a yoke and spring for counterbalancing the weight of the upper roll, the said yoke carrying the supply-pipe for the said Water-jacket.

14. A rolling-mill having a pair of rolls, bearings for each of said rolls one of said rolls being adjustable in position, a Waterjacket for the lower bearing of the upper roll, a supply-pipe leading to said Waterjacket, means for effecting an adjustment of said upper rolls, a yoke and spring for counterbalancing the Weight of the upper roll, the said yoke carrying the supply-pipe for the said Water-jacket, and an oil-supply pipe for the lower-roll bearing the said spring being mounted on said oil-supply pipe.

Signed at Waterbury,Connecticnt,this 13th day of December, 1901.

HUGH L. THOMPSON.

\Vitnesses:

JOHN H. GEnDEs, CAROLINE S. CHURCH. 

